Which organization is tied to regulating chemical exposure limits?

The American Council of Government Industrial Hygienists (ACGIH) is recognized for establishing guidelines and recommended exposure limits for various chemicals in the workplace environments. Their Threshold Limit Values (TLVs) are widely utilized by industrial hygienists and safety professionals to protect workers from harmful exposures. ACGIH focuses on promoting occupational health and safety, advocating for safe workplaces through the publication of these limits, which serve as a reference for best practices in industrial hygiene.

While the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) also play significant roles in regulatory oversight related to chemicals and worker safety, their focus differs. The EPA primarily deals with environmental regulations and chemical safety in the broader context of ecological impacts, whereas OSHA is responsible for ensuring safe working conditions, enforcing legal standards, and setting permissible exposure limits (PELs). The National Institute for Occupational Safety and Health (NIOSH) conducts research and provides recommendations for preventing work-related injuries and illnesses but does not enforce regulations like OSHA does.

Thus, ACGIH's foundational role in developing and supporting specific exposure limits aligns closely with the question regarding regulation of chemical exposure limits in occupational settings.